The Strong Relationship Between Posture and Pain: Loss of Dorsiflexion and Flat Feet

 

The Strong Relationship Between Posture and Pain:
Loss of Dorsiflexion and Flat Feet

Research Supports:
  • Loss of Dorsiflexion: Studies have correlated decreased dorsiflexion, alteration in lower extremity alignment, altered muscle recruitment during functional tasks, and pain/injury of the lower extremity, sacroiliac joint and low back.
  • Feet Flatten: Increased pronation has been associated with injuries ranging from medial tibial stress syndrome (shin splints) to tibias posterior tendinitis, Achilles bursitis or tendinitis, patellofemoral disorders, iliotibial friction syndrome, and lower extremity stress fracture.
Correlated Impairments:
Overhead Squat Assessment:
  • Feet flatten
  • Feet turn-out
  • Knees bow-in
  • Knees bow-out
  • Asymmetrical weight shift
Range of Motion:
  • Loss of dorsiflexion
Fascial Dysfunction:
- Thickening, histochemical changes, decrease in tensile strength, addition of disordered collagen fibers, and decrease in shear.
  • Plantar fascia
  • Crural fascia

Arthrokinematic Dysfunction:
  • Tibiotalar Joint: Inadequate posterior glide of the talus on the tibia
  • Distal Tibiofibular Joint: Inadequate posterior glide of the lateral malleolus on the tibia or hyper-mobility
  • Proximal Tibiofibular Joint: Inadequate anterior glide of the fibular head on the tibia or hyper-mobility
Short/Over-Active:
(Release and Lengthen)
  • Plantar Flexors:
  • Gastrocnemius
  • Soleus
  • Fibularis muscle
  • Evertors:
  • Fibularis muscle
Long/Over-Active:
(Release Only)
  • Synergists of Dorsiflexion and Inversion:
  • Flexor digitorum longus
  • Flexor hallucis longus
  • Extensor hallucis longus
  • Extensor digitorum longus
Long/Under-Active:
(Activate)
  • Invertors:
  • Tibialis posterior
  • Tibialis anterior
  • Dorsiflexor:
  • Tibialias anterior
  • Midfoot Plantar Flexors:
  • Short toe flexors

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